Low-power 2.4-GHz transceiver with passive RX front-end and 400-mV supply

被引：180

作者：

Cook, Ben W. ^{[1
]}

Berny, Axel ^{[1
]}

Molnar, Alyosha ^{[1
]}

Lanzisera, Steven ^{[1
]}

Pister, Kristofer S. J. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2006年 / 41卷 / 12期

关键词：

low-power radio; low-power RF; passive gain; passive mixer; RF CMOS; sensor network; smart dust;

D O I：

10.1109/JSSC.2006.884801

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An ultra low power 2.4-G-Hz transceiver targeting wireless sensor network applications is presented. The receiver front-end is fully passive, utilizing an integrated resonant matching network to achieve voltage gain and interface directly to a passive mixer. The receiver achieves a 7-dB noise figure and -7.5-dBm IIP3 while consuming 330 mu W from a 400-mV supply. The binary FSK transmitter delivers 300 mu W to a balanced 50-Omega load with 30% overall efficiency and 45% power amplifier (PA) efficiency. Performance of the receiver topology is analyzed and simple expressions for the gain and noise figure of both the passive mixer and matching network are derived. An analysis of passive mixer input impedance reveals the potential to reject interferers at the mixer input with characteristics similar to an extremely high-Q parallel LC filter centered at the switching frequency.

引用

页码：2757 / 2766

页数：10

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